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3. Promises, yield, generator and async functions #6

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opened 2025-02-05 11:09:08 +01:00 by lang · 3 comments
lang commented 2025-02-05 11:09:08 +01:00
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lang changed title from Promises, async functions etc. to Promises, yield, generator and async functions 2025-02-05 11:12:17 +01:00
lang changed title from Promises, yield, generator and async functions to 3. Promises, yield, generator and async functions 2025-02-05 11:20:31 +01:00
lang commented 2025-02-05 11:45:35 +01:00
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let hello = 'asdkljfbnas';
```js let hello = 'asdkljfbnas'; ```
andi commented 2025-02-27 14:30:33 +01:00
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async/await = async makes a function return a promise.
await makes an async function wait for a promise.

By using these 2 keywords together, they allow you to write asynchronous code in a synchronous manner.
async doesn't have resolve and reject parameters. Everything after await is placed in an event queue.

async is works together with await.

async/await = async makes a function return a promise. await makes an async function wait for a promise. By using these 2 keywords together, they allow you to write asynchronous code in a synchronous manner. async doesn't have resolve and reject parameters. Everything after await is placed in an event queue. async is works together with await.
andi commented 2025-02-27 14:33:57 +01:00
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Promise = an Object that manages asynchronous operations.
Wrap a promise object around {asynchronous code}
"I promise to return a value"
PENDING -> RESOLVED or REJECTED

new Promise ((resolve, reject) => {async code} ) (it is usually an arrow function)

Promise = an Object that manages asynchronous operations. Wrap a promise object around {asynchronous code} "I promise to return a value" PENDING -> RESOLVED or REJECTED new Promise ((resolve, reject) => {async code} ) (it is usually an arrow function)
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Reference: andi/Practice-1#6
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